High quality light guide plates that can control the illumination angle based on microprism structures

Abstract

In order to make the backlight system thinner and brighter, we propose a high quality poly(methylmethacrylate) light guide plate (LGP) based on microprism structures, which can be designed to control the illumination angle, and to get enough uniformity of intensity, so the backlight system will be simplified to use only one LGP and requires no other optical sheets. Design results reveal that our LGP can achieve a uniformity of intensity better than 86%, and get an illumination angle between ±25°, without using any optical sheets.

Analysis and Improvement of Spectrum Defects in Prism Film by Optical Simulation

“…In combination of prism and diffusing film, various optical phenomena have been occurred by different prism structures [7,8,10,11]. The photographs of hot band and rainbow phenomenon in the range of viewing angles from À80 to þ80 are shown in Figure 2.…”

Arrays of Lucius microprisms for directional allocation of light and autostereoscopic three-dimensional displays

“…Autostereoscopic 3D display. The ability of the Lucius prism array to directionally allocate the incident light intensity suggests its use in various optical devices [18][19][20][21][22][23][24][25][26] , such as dual-view or autostereoscopic 3D display [27][28][29][30][31] . To perceive a 3D image, human eyes must see different views (binocular disparity), allowing for the sensation of depth known as stereopsis after complicated processing in the brain 29 .…”

Fabrication of cone-like microstructure using UV LIGA-like for light guide plate application

“…The thin film transistorliquid crystal display (TFT-LCD) (Feng et al 2004) has widely been used for a high-quality display because of its high brightness, thin dimension and low power consumption. The back light module (BLM) of LCD consists of three primary parts i.e.…”